$BTC Some key features of Bitcoin are:

- Decentralized: It is not under the control of any central authority.

- Digital: It does not exist in physical form, only exists in digital form.

- Limited supply: A total of 21 million Bitcoins can be mined.

- Secure: Cryptography is used to secure transactions.

Bitcoin can be used for:

- Online transactions

- Investment

- Cross-border payments

The value of Bitcoin is determined in the market based on supply and demand.